Free delivery on orders over £50.00 in the UK Online Catalogue : Products For Tropical Fish : Marine Salt Tropic Marin Salt Salt for marine aquariums, formulated in 1965. Very popular used by many public aquariums, contains 70 trace elements found in natural sea water, contains no phosphates or nitrates. 1.2kg Tropic Marin - 8 gallons - £4.88 4kg Tropic Marin - 26.4 gallons - £10.52 10kg Tropic Marin - 66 gallons - £25.71 20kg Tropic Marin - 132 gallons - £47.66 Can't find what you're looking for ? email us - sales@fishybits.co.uk